Heating and electromagnetic stirring in a ladle furnace - A simulation model

A three-dimensional simulation model coupling heating and induction stirrin g in an ASEA-SKF ladle furnace was developed. Data of the heat transfer fro m the area to the steel bath were predicted in a separate model and include d as boundary conditions in a ladle model. The are model considers the cont ributions of heat transferred by of each of the following mechanisms: radia tion, convection, condensation and energy transported by electrons. Predict ions were made to simulate the change of temperature distribution in the la dle during simultaneous heating with electrodes and stirring by induction. A first attempt was made to compare the predictions with measured temperatu res from a 100 t ASEA-SKF ladle. The agreement was found to be fairly good when heat-flux data for a 25 cm are length were used as input to the ladle model. This indicates that the model can be used for more in-depth studies of the effects of heating for ladies that are inductively stirred.